#include <iostream>
#include <map>
 
int main()
{
    std::map<int, char> a = {{1, 'a'}, {2, 'b'}};
    try
    {
        std::cout<<a.find(1)->second<<std::endl;
        std::cout<<a.find(3)->second<<std::endl;
    }
    catch(const std::exception& e)
    {
        std::cerr <<"fjkafjkds" << '\n';
    }
    
}